One-step Green Synthesis of ZnO Nanoparticles using Optunia Ficus IndicaFruit Extract and Their Antibacterial Activities

A novel ZnO nanoparticles aqueous solution was prepared through a one-step reaction between a modified hyperbranched polymer-PNP and zinc nitrate. During the reaction process, PNP not only acted as the reagent to produce ZnO nanoparticles, but also controlled the size of the synthesized ZnO nanoparticles and stabilize them after reaction. The size of ZnO nanoparticles were about 6 nm with narrow size distribution. Then the ZnO nanoparticles were utilized for the functional finishing of cotton fabrics by in situ generation and deposition method. Scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) measurements confirmed the ZnO nanoparticles coated on the cotton fibers. The treated cotton fabrics exhibited excellent UV protective properties and antibacterial activities. When the ZnO content in cotton fabric was 2.23 %, the UPF value of treated cotton fabric reached 114.4 and the bacterial reduction rates againstStaphylococcus aureus(S. aureus) andEscherichia coli(E. coli) both exceeded 98 %.

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Nanoscaled Electrocatalytic Optically Modulated ZnO Nanoparticles through Green Process ofPunica granatumL. and Their Antibacterial Activities

International Journal of Electrochemistry ◽

10.1155/2016/4682967 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 9

Author(s):

Xolile Fuku ◽

Abdoulaye Diallo ◽

Malik Maaza

Keyword(s):

Metal Oxide ◽

Green Synthesis ◽

Zno Nanoparticles ◽

Metal Oxide Nanoparticles ◽

Antibacterial Activities ◽

Oxide Semiconductor ◽

Bacterial Strains ◽

Zno Nps ◽

Nanoparticle Biosynthesis ◽

High Concentrations

Most recently, green synthesis of metal oxide nanoparticles has become an interesting subject of the nanoscience and nanotechnology. The use of plant systems has been deemed a green route and a dependable method for nanoparticle biosynthesis, owing to its environmental friendly nature. The present work demonstrates the bioreductive green synthesis of nanosized zinc oxide (ZnO) using peel extracts of pomegranate. Highly crystalline ZnO nanoparticles (ZnO NPs) which are 5 nm in particle size were characterised by HRTEM and XRD. FT-IR spectra confirmed the presence of the biomolecules and formation of plant protein-coated ZnO NPs and also the pure ZnO NPs. Electrochemical investigation revealed the redox properties and the conductivity of the as-prepared ZnO nanoparticles. The optical band gap of ZnO NPs was calculated to be 3.48 eV which indicates that ZnO NPs can be used in metal oxide semiconductor-based devices. Further, the nanomaterials were also found to be good inhibitors of bacterial strains at both low and high concentrations of 5–10 mg mL−1.

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Green synthesis of multifunctional zinc oxide (ZnO) nanoparticles using Cassia fistula plant extract and their photodegradative, antioxidant and antibacterial activities

Materials Science in Semiconductor Processing ◽

10.1016/j.mssp.2014.12.023 ◽

2015 ◽

Vol 31 ◽

pp. 446-454 ◽

Cited By ~ 189

Author(s):

D. Suresh ◽

P.C. Nethravathi ◽

Udayabhanu ◽

H. Rajanaika ◽

H. Nagabhushana ◽

...

Keyword(s):

Zinc Oxide ◽

Green Synthesis ◽

Plant Extract ◽

Zno Nanoparticles ◽

Antibacterial Activities ◽

Cassia Fistula

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Fabrication of Antibacterial and UV Protective Silk Fabrics via in Situ Generating ZnO Nanoparticles by Hyperbranched Polymer

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.796.374 ◽

2013 ◽

Vol 796 ◽

pp. 374-379 ◽

Cited By ~ 2

Author(s):

Yan Fen Liao ◽

De Suo Zhang ◽

Yu Yue Chen ◽

Hong Lin

Keyword(s):

Zno Nanoparticles ◽

Hyperbranched Polymer ◽

Antibacterial Activities ◽

Zinc Nitrate ◽

Bacterial Reduction ◽

Silk Fibers ◽

One Step ◽

Uv Protective Properties ◽

Silk Fabrics

This paper presents a method of fabricating ZnO nanoparticles coated silk fabrics via a one-step in situ generation and deposition reaction. In this procedure, amino terminated hyperbranched polymer (HBP-NH2) and zinc nitrate were used as the precursors without any other binders. The results indicated that UV protective properties and antibacterial activities of treated silk fabrics grew in quantity with increase of the concentration of precursors in this reaction process. When the concentration of HBP-NH2and zinc nitrate were 24 g/L and 17.85g/L respectively, the UPF value of treated silk fabric was 131 and the bacterial reduction rates againstStaphylococcus aureusandEscherichia coliboth exceeded 99%. Moreover, the treated silk fabrics were characterized by FESEM, EDS and XRD which demonstrated that the ZnO nanoparticles coated on the silk fibers successfully and well dispersed with diameter around 90nm.

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Green synthesis of ZnO nanoparticles using orange fruit peel extract for antibacterial activities

RSC Advances ◽

10.1039/d0ra04926c ◽

2020 ◽

Vol 10 (40) ◽

pp. 23899-23907 ◽

Cited By ~ 5

Author(s):

Tu Uyen Doan Thi ◽

Trung Thoai Nguyen ◽

Y Dang Thi ◽

Kieu Hanh Ta Thi ◽

Bach Thang Phan ◽

...

Keyword(s):

Green Synthesis ◽

Zno Nanoparticles ◽

Environmentally Friendly ◽

Antibacterial Activities ◽

Simple Approach ◽

Fruit Peel ◽

Zno Nps ◽

Orange Fruit ◽

Peel Extract

This paper presents an efficient, environmentally friendly, and simple approach for the green synthesis of ZnO nanoparticles (ZnO NPs) using orange fruit peel extract.

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Green Synthesis of Multifunctional Carbon Dots with Antibacterial Activities

Nanomaterials ◽

10.3390/nano11020369 ◽

2021 ◽

Vol 11 (2) ◽

pp. 369 ◽

Cited By ~ 1

Author(s):

Arumugam Saravanan ◽

Moorthy Maruthapandi ◽

Poushali Das ◽

John H. T. Luong ◽

Aharon Gedanken

Keyword(s):

Carbon Dots ◽

Fluorescence Spectra ◽

Antibacterial Effect ◽

Curcuma Longa ◽

Antibacterial Activities ◽

Blue Color ◽

Mean Size ◽

One Step ◽

Bactericidal Activities ◽

Bright Blue

Carbon dots (CDs) were obtained from medicinal turmeric leaves (Curcuma longa) by a facile one-step hydrothermal method and evaluated for their bactericidal activities against two gram-negative; Escherichia coli, Klebsiella pneumoniae, and two gram-positive counterparts; Staphylococcus aureus, S. epidermidis. The CDs exhibited spherical shapes with a mean size of 2.6 nm. The fluorescence spectra of CDs revealed intense fluorescence at λex/em = 362/429 nm with a bright blue color in an aqueous solution. The CDs showed strong photostability under various environmental conditions (pH, salt, and UV-radiation). The complete bactericidal potency of CDs was 0.25 mg/mL for E.coli and S. aureus after 8 h of exposure, while for K. pneumoniae, and S. epidermidis, the CDs at 0.5 mg/mL good antibacterial effect within 8 h and complete eradication after 24 h of exposure is observed. The release of reactive oxygen species played a crucial role in the death of the bacterial cell. The present study provides a strategy for the preparation of CDs from a medicinal plant and their potential antibacterial activities against four common contagious pathogens.

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